A Convenient Heterogeneous Reduction of Knoevenagel Product by Hantzsch Ester and Its Development into Reductive Alkylation of Malononitrile
作者:Yong-Qing Yang、Zheng Lu
DOI:10.1002/cjoc.201400144
日期:2014.7
Poor solubility of Hantzschester is used as indicator in the reduction of methylidene malononitrile. The Knoevenagel reaction is integrated to develop a reductivealkylation of malononitrile with aryl and aliphatic aldehyde as the carbonyl substrate.
Fluoroalkylative Ketonization of Malononitrile-Tethered Alkenes via Nickel Electron-Shuttle and Lewis Acid Catalysis
作者:Yangkun Zhou、Hanmin Huang
DOI:10.1021/acs.orglett.4c01415
日期:2024.5.31
efficient reductive dicarbofunctionalization of unactivatedalkenes with alkyl halides and malononitriles. The combination of Ni electron-shuttle catalysis with Eu(OTf)3, a non-redox-type Lewis acid, effectively activates the iminyl radicals, enabling the direct formation of the C(sp3)–C(sp3) bond and β-ketonitrile functionality across a variety of C═C double bonds. This reaction allows for the expedient